Nanocrystallization of Al88Ni10Nd2 alloy by mechanical alloying

Authors : Alaaddin Gundes, Musa Gogebakan

Pages : 310-316

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Publication Date : 2019-03-01

Article Type : Research

Abstract :In the present study, elemental mixtures of Al, Ni and Nd powders with nominal compositions of Al 88 Ni 10 Nd 2 was mechanically alloyed for times up 110 h yields amorphous or nanocrystalline products. Structural changes and thermal behaviour of the mechanically alloyed powders at different stages of milling have been characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The XRD, DSC and SEM results showed that solid state reaction occurred during mechanical alloying and nano-intermetallic compounds of the Al 88 Ni 10 Nd 2 powders can be obtained. Microstructure of the mechanically alloyed Al 88 Ni 10 Nd 2 powder indicates the formation of fine nanoparticles with a size of about 10-20 nm. However, no amorphous phase has been obtained in Al 88 Ni 10 Nd 2 powders after milled for times up 110 h.
Keywords : Al-Ni-Nd Alloy, Mechanical Alloying, Nanocrystals, Phase Transitions